CVE-2026-15645: Powerkit <= 3.1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'nav' Shortcode Attribute
The Powerkit – Supercharge your WordPress Site plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'nav' Shortcode Attribute in all versions up to, and including, 3.1.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-15645?
The severity of CVE-2026-15645 is medium with a score of 6.4.
What type of vulnerability is CVE-2026-15645?
CVE-2026-15645 is a Stored Cross-Site Scripting (XSS) vulnerability.
How do I fix CVE-2026-15645?
To fix CVE-2026-15645, update the Powerkit plugin to version 3.1.1 or higher.
Who is affected by CVE-2026-15645?
Authenticated users with Contributor+ roles in WordPress can exploit CVE-2026-15645.
What causes CVE-2026-15645?
CVE-2026-15645 is caused by insufficient input sanitization and output escaping in the 'nav' shortcode attribute.